We are absolutely committed to offering as broad and comprehensive a service as we possibly can, and that must be reflected in our hierarchy. To that end, it is our priority that our hierarchy reflects the needs of our inquisitors and the experience of our experts. So if there is a particular subject that you are interested in (either as an expert or as an inquisitor), but that is not currently in our hierarchy, then please let us know.

To suggest a new category to insert into the hierarchy, you must first identify the parent category. This is the category that best encapsulates the broader sense of your new category; for example if you were adding "HTML Programming", then the parent category might be "Programming & Languages", which itself might be under the category "Computers & The Internet".

Use the hierarchy search or browse tools to go to the appropriate parent category, and then click on the icon. This will display a form in which you should enter the details of the new category; complete the form and your new category will be queued for us to review.